TY - GEN

T1 - Path-based system optimal dynamic traffic assignment models

T2 - ITSC 2006: 2006 IEEE Intelligent Transportation Systems Conference

AU - Shen, Wei

AU - Nie, Yu

AU - Zhang, H. Michael

PY - 2006

Y1 - 2006

N2 - The evaluation of path marginal cost, i.e., the gradient of the objective function with respect to path flows, lies in the kernel of solution algorithms for path-based SODTA models. We identify a common critical deficiency in existing path marginal cost evaluation methods, develop a new path marginal cost evaluation method by tracing path flow perturbation propagations and design the corresponding solution algorithm for path-based SO-DTA models in networks in mono-centric cities. Our numerical experiments indicate that this algorithm can generate numerical solutions close to analytical solutions while the solution scheme based on the existing path marginal cost evaluation method cannot.

AB - The evaluation of path marginal cost, i.e., the gradient of the objective function with respect to path flows, lies in the kernel of solution algorithms for path-based SODTA models. We identify a common critical deficiency in existing path marginal cost evaluation methods, develop a new path marginal cost evaluation method by tracing path flow perturbation propagations and design the corresponding solution algorithm for path-based SO-DTA models in networks in mono-centric cities. Our numerical experiments indicate that this algorithm can generate numerical solutions close to analytical solutions while the solution scheme based on the existing path marginal cost evaluation method cannot.

UR - http://www.scopus.com/inward/record.url?scp=41849142019&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=41849142019&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:41849142019

SN - 1424400945

SN - 9781424400942

T3 - IEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC

SP - 1298

EP - 1303

BT - Proceedings of ITSC 2006

Y2 - 17 September 2006 through 20 September 2006

ER -